Suppose that for emily, dvds and trips to the movie theater are perfect substitutes. currently, emily is spending all of her income on trips to the movie theater. if the price of dvds doubles, the substitution effect will
a. be zero.
b. be half the income effect.
c. be two times the income effect.
d. always increase the number of trips to the movie theater emily makes.

How did the contribution of the goods producing sector to gdp growth change between 2010 and 2011 a. it fell by 0.3%. b. it fell by 2.3%. c. it rose by 2.3%. d. it rose by 0.6%. the answer is b

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups. b. we cannot infer anything from these data since the distribution of salaries is likely right skewed. c. you cannot draw any valid conclusions because the sample sizes are different. d. more students should complete internships because having an internship produces a higher salary.

Suppose the real risk-free rate and inflation rate are expected to remain at their current levels throughout the foreseeable future. consider all factors that affect the yield curve. then identify which of the following shapes that the u. s. treasury yield curve can take. check all that apply.